Rum layered intrusion

Layers of mafic and ultramafic intrusive rocks forming the mountain of Hallival

The Rum layered intrusion is located in Scotland, on the island of Rùm (Inner Hebrides). It is a mass of intrusive rock, of mafic-ultramafic composition, the remains of the eroded, solidified magma chamber of an extinct volcano^[1] that was active during the Palaeogene Period.^[2] It is associated with the nearby Skye intrusion and Skye, Mull and Egg lavas.^[3] It was emplaced 60 million years ago above the Iceland hotspot.^[4]^[5]

Thin section of gabbro from Rum

References[]

^ Troll, V R; Mattsson, T; Upton, B G J; Emeleus, C H; Donaldson, C H; Meyer, R; Weis, F; Dahrén, B; Heimdal, T H (2020-10-01). "Fault-Controlled Magma Ascent Recorded in the Central Series of the Rum Layered Intrusion, NW Scotland". Journal of Petrology. 61 (10). doi:10.1093/petrology/egaa093. hdl:10023/23208. ISSN 1460-2415.
^ Emeleus, C.H.; Troll, V.R. (2008). A geological excursion guide to Rum : the Palaeocene igneous rocks of the Isle of Rum, Inner Hebrides. Edinburgh [Scotland]: Edinburgh Geological Society. ISBN 978-1-905267-22-4. OCLC 437092879.
^ Bell, B. R.; Williamson, I. T. (2002). "Tertiary igneous activity". In Trewin, N. H. (ed.). The Geology of Scotland (4th ed.). Geological Society of London. ISBN 9781862393905.
^ Hamilton, M. A.; Pearson, D. G.; Thompson, R. N.; Kelley, S. P.; Emeleus, C. H. (16 July 1998). "Rapid eruption of Skye lavas inferred from precise U–Pb and Ar–Ar dating of the Rum and Cuillinplutonic complexes". Nature. 394 (6690): 260–263. doi:10.1038/28361.
^ Kent, R. W. (1 November 1995). "Magnesian basalts from the Hebrides, Scotland: chemical composition and relationship to the Iceland plume". Journal of the Geological Society. 152 (6): 979–983. doi:10.1144/GSL.JGS.1995.152.01.17.

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[1] Troll, V R; Mattsson, T; Upton, B G J; Emeleus, C H; Donaldson, C H; Meyer, R; Weis, F; Dahrén, B; Heimdal, T H (2020-10-01). "Fault-Controlled Magma Ascent Recorded in the Central Series of the Rum Layered Intrusion, NW Scotland". Journal of Petrology. 61 (10). doi:10.1093/petrology/egaa093. hdl:10023/23208. ISSN 1460-2415.

[2] Emeleus, C.H.; Troll, V.R. (2008). A geological excursion guide to Rum : the Palaeocene igneous rocks of the Isle of Rum, Inner Hebrides. Edinburgh [Scotland]: Edinburgh Geological Society. ISBN 978-1-905267-22-4. OCLC 437092879.

[3] Bell, B. R.; Williamson, I. T. (2002). "Tertiary igneous activity". In Trewin, N. H. (ed.). The Geology of Scotland (4th ed.). Geological Society of London. ISBN 9781862393905.

[4] Hamilton, M. A.; Pearson, D. G.; Thompson, R. N.; Kelley, S. P.; Emeleus, C. H. (16 July 1998). "Rapid eruption of Skye lavas inferred from precise U–Pb and Ar–Ar dating of the Rum and Cuillinplutonic complexes". Nature. 394 (6690): 260–263. doi:10.1038/28361.

[5] Kent, R. W. (1 November 1995). "Magnesian basalts from the Hebrides, Scotland: chemical composition and relationship to the Iceland plume". Journal of the Geological Society. 152 (6): 979–983. doi:10.1144/GSL.JGS.1995.152.01.17.

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